I don't know whether my question belongs on Stack Overflow or Super User (or maybe even Unix & Linux?). Can you please take a look at my draft, and give a recommendation?

The coffee-script REPL by default shows the output in yellow, which is
hardly readable when your background is white. Unfortunately, I
couldn't find a way to configure it, but I don't want to change my
background permanently to black just because of this issue.

Do you know know whether the coffee REPL is configurable? If not, is
there an alternative? Disabling colored output completely would be
fine for me, too.